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We have two types
of UV Reactive pigments:
- Organics
- Inorganics
Both are described below.
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| PRODUCTS:
Organic UV Responsive Pigments |
White bodied powders for use in inks, paints, plastics
and other applications, where their presence is not
meant to be apparent under normal lighting conditions.
Under long ultraviolet or short ultraviolet irradiation,
these materials fluoresce brilliantly, with no afterglow
once the irradiating source is removed. Ideal for security
and identification. Many times stronger than inorganic
equivalents, but not intended for prolonged outdoor
exposure.
| RANGE |
| Grade |
Type |
Characteristics |
Price |
| UV-B |
|
Strong |
- |
| UV-Y |
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Clean
white body color, not gritty |
- |
| UV-R |
Eu complex |
High strength |
- |
| PHYSICAL
PROPERTIES |
| |
UV-B |
UV-Y |
UV-R |
| SG |
1.1 |
1.1 |
1.1 |
| Particle (av) |
10µm |
10µm |
10µm |
| Body colour |
white |
white |
white |
| Emission
color |
blue |
yellow |
red |
| Excitation |
Long & short
UV |
Long &
short UV |
Long & short
UV |
Application guidelines:
These pigments are soluble in some polar solvents, but
better performance is usually obtained by milling into
the base. Dispersing agents may be required in water
based formulations. Stability is typical of organic
compounds, but effective life may be extended by the
use of UV absorbing overlacquers to block shorter incident
wavelengths. These may be blended together, but do not
blend with non-luminescent pigments, or dyes, or other
opacifiers, which will quench the luminescent emissions.
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| PRODUCTS:
Inorganic UV Responsive Pigments |
White bodied powders for use in inks, paints, plastics
and other applications, where their presence is not
meant to be apparent under normal lighting conditions.
Under long ultraviolet or short ultraviolet irradiation,
these materials phosphoresce brilliantly, with little
or no afterglow once the irradiating source is removed.
Good stability under prolonged exposure, so may be used
externally.
| RANGE |
| Grade |
Type |
Characteristics |
Price |
| UV-IB Blue |
BAM |
Very stable |
- |
| UV-IY Yellow |
(to be advised) |
Very bright emission |
- |
| UV-IG Green |
BAM |
Very stable |
- |
| UV-IR Red |
Oxisulphide |
Flash afterglow |
- |
| PHYSICAL
PROPERTIES |
| |
UV-IB |
UV-IY |
UV-IG |
UV-IR |
| SG |
3.7 |
|
3.7 |
3.7 |
| Particle (av) |
10µm |
|
10µm |
10µm |
| Body colour |
white |
|
white |
white |
Emission
peak
under long UV |
450nm blue |
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515nm green |
625nm red |
| Excitation |
UV |
|
UV |
UV |
Application guidelines:
These pigments are insoluble but should not be milled
or ground as this will damage their crystalline structures
and reduce luminescent yield. Should not be used for
water based applications, especially acidic formulations.
These pigments may be blended together, but do not blend
with non-luminescent pigments, or dyes, or other opacifiers,
which will quench the luminescent emissions.
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